1. WMAP Collaboration: E Komatsu et al, Astrophys. J. Suppl. 192, 18 (2011), arXiv:1001.4538 [astro-ph.CO]
2. Here ΩDM = ρ DM/ρ c is defined as usual as the energy density in dark matter with respect to the critical energy density of the Universe $\rho_{\rm c} = 3 H_0^2/8\pi G_{\rm N}$ , where H 0 is the present Hubble parameter, h is its reduced value, $h = H_0 / 100\ {\rm km}\, {\rm s}^{-1}\thinspace {\rm Mpc}^{-1}$
3. P D Serpico, In Proceedings of the XII International Conference on Topics in Astroparticle and Underground Physics (TAUP 2011) (Munich, Germany, 5–9 September 2011), to appear in Journal of Physics: Conference Series (JPCS), (2012)
4. For a similar effort, see [2]
5. M Cirelli et al, J. Cosmol. Astropart. Phys. 1103, 051 (2011), arXiv:1012.4515 [hep-ph]